#-*-Makefile-*- vim:syntax=make
#$Id: null.rules,v 1.10 2010-03-17 00:38:05 klueska Exp $

define NULL_HELP

 NULL extras:

   debug    : compile with minimal optimization and debug symbols

endef
HELP += $(NULL_HELP)

export GCC=gcc
OBJCOPY = objcopy
OBJDUMP = objdump
NCC = ncc
LIBS = -lm

BUILDDIR ?= build/$(PLATFORM)
MAIN_EXE = $(BUILDDIR)/main.exe
MAIN_SREC = $(BUILDDIR)/main.srec
MAIN_IHEX = $(BUILDDIR)/main.ihex
INSTALL_SREC = $(MAIN_SREC).out$(if $(NODEID),-$(NODEID),)
VOLUMEFILE = volumes-at45db.xml
VOLUME_ALLOCATOR ?= tos-storage-at45db

PFLAGS += -Wall -Wshadow -fnesc-gcc=$(GCC) $(NESC_FLAGS)
PFLAGS += -target=$(PLATFORM) -fnesc-cfile=$(BUILDDIR)/app.c
ifdef MSG_SIZE
PFLAGS += -DTOSH_DATA_LENGTH=$(MSG_SIZE)
endif
ifdef DEFAULT_LOCAL_GROUP
PFLAGS += -DDEFINED_TOS_AM_GROUP=$(DEFAULT_LOCAL_GROUP)
endif
ifeq ($(findstring Darwin, $(shell uname)), Darwin)
  CFLAGS += -D_FORTIFY_SOURCE=0
  OBJCOPY = /usr/bin/true
  OBJDUMP = /usr/bin/true
endif

BUILDLESS_DEPS += bytes

# Build storage file if volumes.xml present
# We "steal" the at45db storage spec
ifneq ($(wildcard $(VOLUMEFILE)), )
build_storage: $(BUILDDIR)/StorageVolumes.h

exe0: build_storage 

$(BUILDDIR)/StorageVolumes.h: $(VOLUMEFILE)
	$(VOLUME_ALLOCATOR) $(VOLUME_ALLOCATOR_FLAGS) <$(VOLUMEFILE) >$@

PFLAGS += -I$(BUILDDIR)
else

build_storage: 

endif

ifndef BUILD_DEPS
  ifeq ($(filter $(BUILDLESS_DEPS),$(GOALS)),)
    BUILD_DEPS = exe bytes $(POST_BUILD_EXTRA_DEPS)
  endif
endif

exe: exe0 bytes FORCE
	@:

exe0: builddir $(BUILD_EXTRA_DEPS) $(COMPONENT).nc FORCE
	@echo "    compiling $(COMPONENT) to a $(PLATFORM) binary"
	$(NCC) -o $(MAIN_EXE) $(OPTFLAGS) $(PFLAGS) $(CFLAGS) $(COMPONENT).nc $(LIBS) $(LDFLAGS)
	@echo "    compiled $(COMPONENT) to $(MAIN_EXE)"

builddir: FORCE
	mkdir -p $(BUILDDIR)

bytes: FORCE
	@$(OBJDUMP) -h $(MAIN_EXE) | perl -ne '$$b{$$1}=hex $$2 if /^\s*\d+\s*\.(text|data|bss)\s+(\S+)/; END { printf("%16d bytes in ROM\n%16d bytes in RAM\n",$$b{text}+$$b{data},$$b{data}+$$b{bss}); }'

